Lamp socket



FIG. 1 is a perspective view of the lamp socket;

FIG. 2 is a front elevational view of the lamp socket, the rear view being a mirror image thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a right side elevational view thereof, the left side being a mirror image thereof; and,

FIG. 5 is a perspective view thereof.

The broken line showing of the lamp, socket base, and elements on the bottom of the lamp socket are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a lamp socket, as shown and described. 